Packet transmissions over cellular radio
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United States of America Patent
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-
Sep 2, 2003
Grant Date -
N/A
app pub date -
Dec 2, 1997
filing date -
Dec 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved system is achieved in a cellular arrangement where mobile units employ a moveable slot TDM approach to send packets to base stations, and where the base stations use a non-contention approach. When a base station transmits information packets to different mobile units, it merely queues the packets and transmits over a given channel. In a corresponding inbound channel, the mobile units transmit packets to the base station using the MSTDM protocol. The base station also transmits information regarding whether the inbound frequency is occupied by a signal that is being transmitted to the base station, or whether a collision exists. A collision on an inbound frequency occurs when more than one signal is simultaneously transmitted on the inbound frequency. On an additional control channel that is shared by all base stations, the base station sends information in a TDM fashion.
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